/*
** Zabbix
** Copyright (C) 2001-2023 Zabbix SIA
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
**/

package yashandb

import (
	"context"

	"git.zabbix.com/ap/plugin-support/zbxerr"
)

func instanceHandler(ctx context.Context, conn YasClient, params map[string]string, _ ...string) (interface{}, error) {
	var instanceStats string

	row, err := conn.QueryRow(ctx, `
		SELECT '{"instance":"yasdb","hostname":"yas","version":"' ||
       version || '","uptime":' ||
       extract(DAY from sysdate - startup_time) * 86400 +
       extract(HOUR from sysdate - startup_time) * 3600 +
       extract(MINUTE from sysdate - startup_time) * 60 +
       cast(extract(SECOND from sysdate - startup_time) AS int) || ',"status":' ||
       DECODE(STATUS,
              'STARTED',
              1,
              'MOUNTED',
              2,
              'OPEN',
              3,
              'OPEN MIGRATE',
              4,
              0) || ',"archiver":2,"role":1}'
		FROM V$INSTANCE	
	`)
	if err != nil {
		return nil, zbxerr.ErrorCannotFetchData.Wrap(err)
	}

	err = row.Scan(&instanceStats)
	if err != nil {
		return nil, zbxerr.ErrorCannotFetchData.Wrap(err)
	}

	return instanceStats, nil
}
